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H. C. GOULDING.

LOGOMOTIVB BOILER. No. 353,303. H Patented Nov. 30, "1886.

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H. G.-GOULDING. LOGOMOTIVE BOILER.

No. 353,303. Patented NW. 30-, 1886.

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HENRY c. GOULDING, on NEW YORK, N. Y.

LOCOMOTlVE-BOILER.

SPECIPICATIdN forming part of Letters Patent No. 353,303, dated November 30, 1886.

Applicati n filed March 22, 18 6.

To aZZ whom it may concern:

Be it known that I, HENRY G. GOULDING, a citizen of the United States of North America, and a resident of the city, county, and State of New York, have invented a new and useful Improvement-in Locomotive-Boilers, of which the following is a specification.

The object of this invention is to provide an improved locomotive -boiler, constructed especially with a View to secure extensive firesurface, quick generation of steam, and economy of fuel, all of which will be hereinafter fully set forth.

Reference is to be had to the accompanying drawings, forming part of the specification, in which similar letters of reference indicate corresponding parts in both the figures.

Figure l is a sectional side elevation of my improved boiler. Fig. 2 is a vertical section thereof on line at m, Fig. 1.

The outerboiler-shell, A, has flat sides and roundedtop and bottom, and the inner shell, B, has fiat sides and top and bottom, and they inclose a water-space, 0, extending all about the boiler, as shown. At the sides the waterspace is comparatively narrow, and there the shells A B are stayed by bolts a a. At the top the space 0 also serves as a steam-chamber, the normal water-line being designated by dotted lines, and a steam-dome, D, commu nicating with the steam-chamber, is fixed on the top of the boiler.

The water-space in the bottom of the boiler is made suffieiently deep to permit the deposit of all sediment from the water, whence it may be blown off through suitable blow-off cocks. (Not shown.)

In the bottom of the fire-box E is a grate, E, of ordinary construction.

The peculiar points of my improved construction are as follows: Instead of making the upper front angle or corner of the fire-box rectangular or rounded on the inside, as is usual, I bend the shells A B at that point, so that they form an angle of forty-five degrees, or thereabout, to the crown sheet and boiler-front, as shown at b b, Fig. 1, and in the lower and diagonally-opposite corner of the fire-box the inner shell, B, is fixed at a like angle to the perpendicular, as shown at d. Then I extend several series of tubes, f, from the inner shell at b to the inner shell at d di- Serial No. 196,136. (No model.)

agonally from the upper front corner to the lower rear corner of the fire-box, expanding the ends of said tubes into the shell in the ordinary manner, and making provisions for so doing by openings and plugs in the outer shell, as indicated at f so that said tubes shall form a free water-communication between the upper and lower water-spaces of the boiler. These tubesf are designed to be fixed about eight or ten inches apart, and to be in four or more rows, each row extending from side to side of the fire-box, and preferably they will be so arranged that the tubes of one row will be oppositetbe spaces between the tubes of the next row. In order to protect the lower ends of these tubes from too intense heat, and to-provide more heating-surface, a hollow bridgewall, F, communicating with the boiler waterspace at each end, is extended across the firebox from side to side in front of thelower ends of said tnbesf.

That part of the inner shell of the boiler which extends from the fire box to the stack Gr isinclined upward from front to rear ataslight angle, of, say, an inch to a foot of length, or there-about. In short boilers the degree of inclination of this part of the boiler may be two or more inches to the foot; but in long boilers an inch of inclination to a foot is more practicable. This part of the boiler from the firebox to the stack is filled with tubes 9 9, extending from the upper to the lower waterspaee, set several inches apart-at rightangles to the top and bottom sheets of the inner shell, so as to be inclined somewhat from the perpendicular, for the purpose of facilitating the water-circulation, which is always found to be betterin inclined than in vertical tubes. These tubes g g are also preferably staggered, each one being set opposite the space between the next two from the front rearward.

By arranging the tubes f and the water bridge-wall F in the fire-box and the inclined tubes 9' g in the body of the boiler, as shown, I not only greatly increase the heating-surface over that of other locomotive-boilers, so that steam may be made more quickly and with less consumption of fuel, but also insure a more rapid and free circulation of the water in the boiler, all of which are matters of industrial and commercial importance.

It will be evident that in this form of boiler there will be a tendency for ashes and cinders to deposit on the bottom sheet of the inner shell, B, about the lower ends of the tubes g g. In order that such deposits may'readily be removed, I fix short tubes m at through both shells A B and through the intermediate water-space, just above the bottom of the shell B. The outer ends of these tubes at m are kept normally closed with plugs or caps o 0, and when it is desirable to remove the deposit of ashes and Cinders, as aforesaid, the caps or plugs are removed and the ashes c ejected by jets of steam or blasts of air, or by suction through the said tubes at m, and, if desired, one or more of the caps or plugs 0 0 may be removed at any time to admit air to aid in combustion of the gases about the tubes g 9.

On the smoke-stack end of the boiler I secure a deflector, H, Fig. 1, which is designed to be extended about one-third of the distance down over and the full width of the exit-opening of the combustion chamber, in which are the tubes 9 g, in order to cause the products of combustion, as they flow from the fire box to the stack, to be distributed more evenly about the said tubes, tooppose the tendency of the hot air and gases to keep about the upper parts only of the tubes, as they naturally would in the absence of the deflector. By thus causing the products of combustion to be more evenly distributed about the tubes the deflector H effects a more rapid generation of steam and a greater evaporation of water for the fuel used. It also performs, to a considerable degree, the functions of a deflector for ashes and einders, that would otherwise escape up the stack, directing them downward as they escape from the combustion-chamber into the base of the uptake, where there may be a vessel of water to receive them.

Having thus described myinvention,I claim as new and desire-to secure by Letters Patent 1.. A locomotive-boiler constructed substantially as herein shown and described, with front upper corner and lower rear corner of the fire-box formed parallel to each other and at angles of forty-five degrees, or thereabout, to the crown-sheet, with series of water-tubes extending diagonally from the upper front to the lower rear corner of the fire-box, and comentered through both shells of the boiler at the sides thereof, all arranged as herein set forth.

2. In a locomotive-boiler constructed with the upper front and lower rear corners of the fire-box formed parallel with each other and at angles of forty-five degrees, or thercabout, to the crown-sheet, substantially as herein shown and described, the series of water-tubes f, extending diagonally between said corners, and communicating at both ends with the boiler water-chamber, as set forth.

3. In a locomotive-boiler constructed substantially as herein specified, with the inner shell inclined upward from fire-box to smoke stack, the inclined water -tubes g g, fixed in the top and bottom of the inner shell and at right angles thereto, as set forth.

4. In a locomotive-boiler constructed with water-tubes fixed diagonally in the fire-box, from the upper front corner to the lower rear corner thereof, a water bridge wall extending across the fire-box in front of the lower ends of the diagonal tubes,and communicating at both ends with the boiler water-cha1nber, substantially as and for the purposes described.

5. In a locomotive-boiler constructed substantially as herein shown and described, the

combination, with the boiler-shells, of a defleeting plate fixed thereon and extending down over the upper portion of the exit-opening of the combustion-chamber, as and for the purposes set forth.

In testimony that I claim the foregoing as my invention I have signed my name,in pres ence of two witnesses, this 26th day of February, 1886.

HENRY O. GOULDING.

Witnesses:

JACOB J. SToRER, WM. A. Lowe. 

